more and more
Iterating Backward Through a List 1. Overview In this quick tutorial, we’ll learn about various ways in which we can iterate backward through a list in Java. 2. Iterator in Java An Iterator is an interface in the Java Collections Framework that allows us to iterate over the elements in a… Continue Reading java-list-iterate-backwards
getdocs
Raw Types in Java 1. Introduction In this quick tutorial, we’re going to take a look at raw types, what they are, and why we should avoid them. 2. Raw Types A raw type is a name for a generic interface or class without its type argument: List list =… Continue Reading raw-types-java
getdocs
Java Service Provider Interface 1. Overview Java 6 has introduced a feature for discovering and loading implementations matching a given interface: Service Provider Interface (SPI). In this tutorial, we’ll introduce the components of Java SPI and show how we can apply it to a practical use case. 2. Terms and… Continue Reading java-spi
getdocs
Guide to the Java Clock Class 1. Overview In this tutorial, we’re going to look into the Java Clock class from the java.time package. We’ll explain what the Clock class is and how we can use it. 2. The Clock Class Clock was added in Java 8 and provides access to an instant… Continue Reading java-clock
getdocs
Concurrency with LMAX Disruptor – An Introduction Java Java Concurrency 1. Overview This article introduces the LMAX Disruptor and talks about how it helps to achieve software concurrency with low latency. We will also see a basic usage of the Disruptor library. 2. What Is a Disruptor? Disruptor is an… Continue Reading lmax-disruptor-concurrency
getdocs
Guide to JDeferred 1. Overview JDeferred is a small Java library (also supports Groovy) used for implementing asynchronous topology without writing boilerplate code. This framework is inspired by the Jquery’s Promise/Ajax feature and Android’s Deferred Object pattern. In this tutorial, we’ll show how to use JDeferred and its different utilities.… Continue Reading jdeferred
getdocs
Static and Default Methods in Interfaces in Java 1. Overview Java 8 brought to the table a few brand new features, including lambda expressions, functional interfaces, method references, streams, Optional, and static and default methods in interfaces. Some of them have been already covered in this article. Nonetheless, static and… Continue Reading java-static-default-methods
getdocs
Weak References in Java 1. Overview In this article, we’ll have a look at the concept of a weak reference – in the Java language. We’re going to explain what these are, what they’re used for and how to work with them properly. 2. Weak References A weakly referenced object… Continue Reading java-weak-reference
getdocs
Introduction to MBassador 1. Overview Simply put, MBassador is a high-performance event bus utilizing the publish-subscribe semantics. Messages are broadcasted to one or more peers without the prior knowledge of how many subscribers there are, or how they use the message. 2. Maven Dependency Before we can use the… Continue Reading mbassador
getdocs
Check If a Number Is Prime in Java 1. Introduction First, let’s go over same basic theory. Simply put, a number is prime if it’s only divisible by one and by the number itself. The non-prime numbers are called composite numbers. And number one is neither prime nor composite. In… Continue Reading java-prime-numbers
getdocs